Home / 85,190,971.60-127,786,457.40-52,942,344.40

Finding the Fourth Proportional to 85,190,971.60, 127,786,457.40 and 52,942,344.40

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Solution

The fourth proportional to 85,190,971.60, 127,786,457.40 and 52,942,344.40 is: 79,413,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190,971.60 : 127,786,457.40 = 52,942,344.40 : x
  2. Step 2: Convert to fraction form
    85,190,971.60/127,786,457.40 = 52,942,344.40/x
  3. Step 3: Cross multiply
    85,190,971.60x = 127,786,457.40 × 52,942,344.40
  4. Step 4: Simplify right side
    85,190,971.60x = 6,765,314,637,326,729
  5. Step 5: Solve for x
    x = 6,765,314,637,326,729/85,190,971.60
  6. Step 6: Final answer
    x = 79,413,516.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.